• Traceable
• Available in 473 mL (16oz.) or Single-Use (100 mL) Sizes

These Certified Reference Materials (CRM) calibrate conductivity meters and probes for maximum accuracy. They are compatible with all makes of equipment, and can be used in lab or field. Accuracy at 25 degrees C is +/-0.25umhos for 1, 5, and 10umhos solutions, and 0.25% for all other solutions; or the uncertainty shown on the certificate, whichever is greater. Each container is labeled for calibrating conductivity in micromhos (microsiemens), resistivity in megohms, and dissolved solids in ppm. Available in 473mL (16oz.) bottles or 100mL (3.4oz.) single-use polyethylene bottles.
Single-use standards make it easy to calibrate with no external contamination. An extra large opening of 4.4cm (1 3/4") diameter and depth of 8.9cm (3 1/2") allow probe calibration to take place in the standard's polyethylene container. Ideal for lab/field conditions.
All solutions include a serial numbered Traceable certificate to indicate traceability to standards provided by the National Institute of Standards and Technology (NIST). Double A2LA accreditation accredited certification provides the highest achievable level of quality assurance, documentation, and accuracy. CRMs are produced by A2LA accredited ISO Guide 34 certified reference material producer and by an A2LA accredited ISO 17025 calibration laboratory. Additional accreditations include ISO 31 (certificate content), and ISO 35 (statistical analysis), plus ISO 9001 DNV (certified quality manufacturer).
Ordering Information: Assortment 61161-356 includes one bottle each of the single-use standards, except the 5umhos solution (12777-832). All containers supplied with individual temperature compensation chart, calibration instructions, traceability information and Traceable certificate.

This is only for VWR International, Model 89030-262. It may differ from the image shown in color, features, may be an accessory, etc. Please refer to the model number or contact us if you have any questions.